Chimney at Llanfyrnach Mine is a Grade II listed building in the Pembrokeshire local planning authority area, Wales. First listed on 18 June 2004. Chimney.
Chimney at Llanfyrnach Mine
- WRENN ID
- worn-lead-rain
- Grade
- II
- Local Planning Authority
- Pembrokeshire
- Constituency
- Ceredigion Preseli MP: Ben Lake (PC)
- Country
- Wales
- Date first listed
- 18 June 2004
- Type
- Chimney
- Address
- Chimney at Llanfyrnach Mine, Crymych
- OS grid reference
- SN 225 314
- Coordinates
- 51.95348, -4.58375
- Source
- Cadw listing
Description
The chimney at Llanfyrnach Mine is a structure from a former lead mine. It is made of rubble stone and features a short, circular, and tapering design.
Local climate
Chimney at Llanfyrnach Mine sits in one of the wettest parts of the UK, with an average of 1,170 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.
It experiences an average of 20 freeze-thaw cycles a year, fewer than 79% of listed buildings. Of these, 9 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.
Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.
More on this building
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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- Detailed attributes — period, style, materials, features
- Flood risk assessment
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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